fix(splash): use tasklist asset directory
fix(splash): use tasklist asset directory

related to CAM-6195
xlinur/camunda-bpm-webapp,TitanUser/camunda-bpm-webapp,xlinur/camunda-bpm-webapp,TitanUser/camunda-bpm-webapp,TitanUser/camunda-bpm-webapp,xlinur/camunda-bpm-webapp